§ 153. Construction. Wherever the terms board of railroad commissioners, or commission of gas and electricity or inspector of gas meters or board of rapid transit railroad commissioners or transit construction commissioner or public service commission or public service commission of the first district or public service commission of the second district occur in any law, contract or document or whenever in any law, contract or document reference is made to such boards, commissions, commissioners or inspector, such terms or reference shall be deemed to refer to the public service commission as established by this chapter, so far as such law, contract or document pertains to matters which are within the jurisdiction of such commission.